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Monday, June 22, 2009

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Recommended :Liquefied Natural Gas (LNG) is one of the cleanest energy among all other energy sources.LNG and Supply Chain discussed briefly entire production, transportation, receiving and distribution path of LNG. There are still many peoples who are safety, environment & security concerns, not agreeing with the LNG production as discussed in "LNG SES Issues...".

Liquefy Natural gas is a process of cooling down the natural gas to form liquid for easy storage and transportation. There are few ways to cool down natural gas. Typically are mechanical refrigeration, JT valve and expansion turbine. More discussion in "Techniques to Achieve Cryogenic Temperature". Nowadays, liquefying LNG processes generally adopting combination of two or three techniques as discussed above. Following is a tabulation of a few well-known LNG processes.

Process
C3MR
Cascade
SMR
DMR
MFC
N2 Exp
Thermal Eff.
High
High
Med.
High
High
Low
Equip. no
Med.
High
Low
Med.
Med.
Med.
Precooling HX
Kettle
Core-in
-Kettle
Plate-fin
Spiral
Wound
Plate-fin
Kettle
Liq. HX
Spiral
Wound
Core-in
-Kettle
Plate-fin
Plate-fin
Spiral
Wound
Spiral
Wound
Plate-fin
Refrig. Storage
Large
Large
Med.
Med.
Med.
None
CAPEX
Med.
Med.
Low
Med.
Med.
High

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posted by Webworm, 1:52 PM

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